
/* Copyright (C) 1991-2, RSA Data Security, Inc. Created 1991. All
rights reserved.

License to copy and use this software is granted provided that it
is identified as the "RSA Data Security, Inc. MD5 Message-Digest
Algorithm" in all material mentioning or referencing this software
or this function.

License is also granted to make and use derivative works provided
that such works are identified as "derived from the RSA Data
Security, Inc. MD5 Message-Digest Algorithm" in all material
mentioning or referencing the derived work.

RSA Data Security, Inc. makes no representations concerning either
the merchantability of this software or the suitability of this
software for any particular purpose. It is provided "as is"
without express or implied warranty of any kind.

These notices must be retained in any copies of any part of this
documentation and/or software.
 */

#ifndef MD5_H
#define MD5_H


typedef unsigned char *POINTER;

/* MD5 context. */
typedef struct
{
	unsigned long int state[4];   	      /* state (ABCD) */
	unsigned long int count[2]; 	      /* number of bits, modulo 2^64 (lsb first) */
	unsigned char buffer[64];     /* input buffer */
} MD5_CTX;

class MD5
{

	private:

	void MD5Transform (unsigned long int state[4], unsigned char block[64]);
	void Encode (unsigned char*, unsigned long int*, unsigned int);
	void Decode (unsigned long int*, unsigned char*, unsigned int);
	void MD5_memcpy (POINTER, POINTER, unsigned int);
	void MD5_memset (POINTER, int, unsigned int);

	public:

	void MD5Init (MD5_CTX*);
	void MD5Update (MD5_CTX*, unsigned char*, unsigned int);
	void MD5Final (unsigned char [16], MD5_CTX*);

	MD5(){};
};

#endif
